Home / 144,507.26-199,421.45-87,149.54

Finding the Fourth Proportional to 144,507.26, 199,421.45 and 87,149.54

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Solution

The fourth proportional to 144,507.26, 199,421.45 and 87,149.54 is: 120,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,507.26 : 199,421.45 = 87,149.54 : x
  2. Step 2: Convert to fraction form
    144,507.26/199,421.45 = 87,149.54/x
  3. Step 3: Cross multiply
    144,507.26x = 199,421.45 × 87,149.54
  4. Step 4: Simplify right side
    144,507.26x = 17,379,486,200.78
  5. Step 5: Solve for x
    x = 17,379,486,200.78/144,507.26
  6. Step 6: Final answer
    x = 120,267.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.